Ventilator



y 4 J. P. MALLOY 2,282,733

VENTILATOR Filed Feb. 12, 1941 A iiorney I Patented May 12, 1942 V UNITED s v Price i vE m mi'ti Joseph Malloy, Washington, Indl Application February 12, 1941, Serial No. 378,635"

4 Claims.

particularly designed for use on brooders and farm'buildings for maintaining a steady circulation of air within such structures,

A further object of the invention is to provide a ventilator which can be constructed without a great deal of skill, and which also can be mounted in operative position to the opening in the wall of the building without requiring the use of expensive tools or any material amount of skill on the part of the person installing the ventilator.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawing wherein:

Figure'l is a front elevational view of a ventilator embodying the features of the present invention.

Figure 2 is a vertical sectional View taken substantially on the line 2-2 of Figure 1, and

Figure 3 is a horizontal sectional view taken substantially on the line 3-3 of Figure 1.

Referring more in detail to the drawing it will be seen that in the preferred embodiment thereof the ventilator comprises a main body plate 5 perforated as shown, with the perforations indicated by the reference numeral 6, and adapted to be mounted on the wall I of a building atthe outer side of the ventilating opening 8 in said wall.

- The plate 5 may be secured in position through the medium of nails or other suitable fastening elements 9.

Plate 5 has formed integral with the upper edge thereof a forwardly extending cap or shield ill, the front and side edges of which are directed downwardly as shown.

Integral with the vertical side edges of the plate 5 are guide flanges II.

The flanges II, as shown, have the longitudinal free edges thereof reversely bent to provide channels l2. and tongues l3 forming the outer sides of said channels.

Associated with the ventilator body plate' 5 is a slide l3a in the form of a substantially rectangular plate that has opposite longitudinal edges thereof bent at right angles to the body of the plate I34: and then reversely bent to provide guide channels l4 that accommodate the tongues 13 associated with the ventilator plate 5, and tongues [5 that slidably fit the channels 12 of the ventilator plate 5.

It will thus be seen that the slide l3a may be raised or' lowered with respect to the plate 5 for exposing a desired area of the perforated ventilator plate 5.

To guard against loss or misplacement of the slide 13a there is provided therefor an anchor chain or the like l6 that at one end thereof is secured to the plate Ba and at an opposite end thereof is secured to the bottom of the plate 5 as best shown in Figure 2.

It will also be appreciated that the frictional contact between the interengaging tongues and channels will be sufficient to retain the slide l3a v at the desired position of adjustment.

It is believed that the simplicity of the ventilator, together with its many advantages will be apparent to those skilled in the art without further detailed description.

It is also to be understood that while I have herein illustrated and described the preferred embodiment of the invention, I claim all such forms of the invention to which I am entitled and as come within the scope of the claims hereunto appended. Y 1

Having thus described the invention what is claimed as new is:

1. In a ventilator of the character described, a perforated plate adapted to be mounted opposite a ventilating opening and provided with a pair of spaced parallel guide memberspositioned at opposite edges of the plate, and a slide supported by said guide members outwardly thereof for shifting movement relative to and in a plane paralleling said perforated plate, and interengaging means on said slide and said guide members coacting to detachably retain said slide in operative engagement with said guide members.

2. A ventilator comprising a perforated plate provided adjacent one edge thereof with an integral outstanding hood-forming flange, and adjacent opposite longitudinal edges thereof with integral parallel flanges extending at right angles to said hood-forming flange, a slide supported by said parallel flanges in spaced parallelism to said perforated plate and adapted to cover the perforations of the plate when the slide is in iacent opposite longitudinal edges thereof with I longitudinal edges thereof bent relative to; said 10 slide and then reversely bent to provide channels and tongues complementing the channels 7 and tongues on said flanges.

4. A ventilator comprising a perforated plate provided adjacent one edge thereof with an integral outstanding hood-forming flange, and ad--; jacent opposite longitudinal edges thereof with integral parallel flanges extending at right angles to said hood-forming flange, a slide supported by said parallel flanges in spaced parallelism to said perforated plate and adapted to cover the perforations of the plate when the slide is in closed position, said parallel flanges having reversely bent free longitudinal edges presenting guide channels and tongues forming the outer sides of said channels, and said slide having opposite longitudinaledges thereof: bent relative to said slide and then reversely bent to provide channels and tongues complementing the channels and tongues onsaid flanges, and a flexible membersecured at one end thereof to said perforated plate and at an opposite end thereof secured to said-slide. Y e

JOSEPH P. MALLOY. 

